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Get Answers to all your Questions
An element 'X' reacts with O2 to give a compound with a high melting point.
This compound is also soluble in water. The element 'X' is likely to be:
Option: 1 iron
Option: 2 calcium
Option: 3 carbon
Option: 4 silicon
Answers (2)
The element ‘X’ is likely to be Calcium because it reacts with oxygen and forms calcium oxide which has a high melting point and is soluble in water too.
Therefore it satisfies all the conditions given in the question.
Hence, option B is correct
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